Legal analysis: A handwritten will is legally valid. A handwritten will is a self-written will. It is written, signed and dated by the testator. It is one of the legal forms of will. As long as the content of the will is , the format is legal, and the handwritten will is completely legally valid.

Legal basis: Article 1139 of the "People's Republic of China and Civil Code" Notarization of a will shall be handled by the testator through a notary office. A self-written will is written and signed by the testator, and the year, month and day are indicated. A written will must be witnessed by two or more witnesses, and one of them should write it on behalf of the person, indicating the year, month, and day, and should be signed by the attorney, other witnesses, and the testator. A will made in the form of a recording must be witnessed by two or more witnesses. In critical circumstances, a testator may make an oral will. An oral will must be witnessed by two or more witnesses. After the critical situation is resolved, if the testator is able to make a will in written or recorded form, the oral will will be invalid.